Hello. I am currently running IDL 8.4 with a network license on W7 x64bit machine. Since my license is valid only when I am connected to my work network, I would like to be able to run my .pro files created in IDL even when I am offline or on another computer. I tried to create .sav file and run it in IDL virtual machine, but anytime I try it the following happens: 1. when I try to open IDL virtual machine, the program prompt me to navigate to .sav file 2. when I choose the .sav file, the regular IDL working environment starts to open 3. after the IDL starts it shows the following message: "License server machine is down or not responding. ..." 4. when I hit ''OK'' the new message pops up: "Entering timed demo mode. Each session is limited to 7 minutes of operation. Printing and file saving are disabled." 5. when I try to run my program, it halts at opening of some image files: ''OPENW: Feature disabled for demo mode.'' Could anyone please help me to solve this problem? How could I run my program in a virtual machine mode (not a demo mode)? Is it possible to run my program in Virtual machine mode - even if I have file-saving included in my code? Thanks, Peter